Fireproof lubricating-oil.



UNITED STATES PATENT OFFICE.

ROBERT R. GRAF, OF BALTIMORE, MARYLAND.

FIREPROOF LUBRICATING-OIL.

No Drawing.

1 '0 all whom it may concern:

Be it known that I, Rom-arr R. Gum, a citizen of the United States, residing at No. 114 East Lombard street, in the city of Baltimore and the State of Maryland, have invented new and useful Fireproof Lubricating-Oils, of which the following is a specification. s

The object of my invention is the production of fire proof lubricating oils, for high speed machinery, journals, bearings, friction surfaces, clutches, locomotive and car axles where cotton wick packings are used, and all other mechanical parts vwhere friction, heating and oxidation; caused by heat and friction thus permitting of perfect lubrication, (1) by increasing the flashing (ignition) point to such a high degree of temperature as to prevent the burning of the oil. (2) by maintaining normal oil temperature upon the surface Where lubrication is required. lily process further renders oils fire proof in the use of the art of tempering metals, case hardening of iron and steel and all oil treatments of metals in oil, since they must be thrust into the oil in a highly heated state and therein allowed to remain until cold, all danger of fire and burning of the oil so treated by my new and improved process for fire proof oils is fully overcome, thereby making complete, the process of tempering, cooling and technical treatment of such metals.

My new and improved process for the making of fire proof lubricating oils overcomes all dangers of fires, hotboxes, heated axles and journals or bearings of locomotives and railway coaches where cotton wicking or waste packings are charged with a quantity of lubricating oilto be supplied to the journals and axles as required, and so frequently take fire, because of the heat generated from friction due to the low point of flashing (ignition) causing the oil to leave the friction parts, due to a lighter gravity produced by heat. All power of lubrication is lost, causing great heat, fires, change in the crystalline form of the metal, with ultimate ruin and breakage of the parts.

My formula consists of 6 ounces of tungstate of soda, 5 ounces of ammonium muriate, 6 ounces of ammonium phosphate, 16 ounces of sal soda, 5 ounces of graphite, ounce of alum, and 6 ounces of ammonium sulfate, all of which I mix together in the finest powder form and add to one gallon Specification of Letters Patent.

- minutes.

Patented May 2, 1916.

Application filed March 8, 1916. Serial No. 82,813.

of lubricating oil and boil for thirty (30) This treatment of lubricating oil will at once cause it to offer great resistance to heat, increase viscosity and prevent the oxidation of carbon properties in the oil, thus producing such a high flashing (ignition) point as to render said oil incapable of burning or being excluded from the friction parts by the action of heat. Since various oils have different densities, boil at various degrees of heat, my process can be applied to meet the requirements of the particular oil to be treated; as proven by me in the many uses of the various oils treated by my new and improved process for the making of fire proof lubricating oils.

The advantages of the combination as herein set forth, are as follows:

(1) With the addition of 5 ounces of graphite and ounce of alum combined with (3 ounces of tungstate of soda, 5 ounces of ammonium muriate. 6 ounces of ammonium phosphate, 16 ounces of sal soda and (3 ounces of ammonium sulfate, I can better control carbon oxidation and combustion and prevent the absorption of heat, both of which are the essential parts to perfect lubrication.

(2) (a) Prevention of the emulsion of oils due to heat. friction and agitation, thereby increasing the viscosity or power of lubrication, (1)) the keeping oil cool and preventing it from reaching its flashing point from the aforesaid actions and conditions. (0) changing to a lighter density and thereby forced from the friction parts.

(3) That graphite can only be suspended in the ordinary lubricating oils, while the said oils remain at their normal temperature. (a) the power of lubrication of graphite depends upon the constant application of it to the friction parts in a suspended state inoil of a uniform temperature. (b) its power combined in a viscous medium renders it the ideal lubricant in this state.

(4) The combination and proportions of the various ingredients as named by me in my new and improved process for the making of fire proof lubricating oils overcome acidities that arise either in or created by heat and molecular action on carbon.

(5) That all danger of fire in locomotive and car axles, pulley hangers, friction clutches, high speed machinery, gas and gas fuel engines where oil is either stored in cotton wick or waste packings, or containers to be consumed by the bearings as required 1 a better combination is had between the oil and the remainder of the chemicals as used by me, namely-5 ounces of ammonium muriate and 6 ounces of ammonium phosphate combined with 5 ounces of graphite. (a) when mixed in the above proportions, by their combined chemical action create a chemical combination in the presence of ounce of alum; which better incorporates the oil aml chemicals uscdt l)) by increasing viscosity, to) preventing the oxidation of carbon, (1!) creating a chemical cooling condition preventing the heating and changing of lubricating oils to a lighter gravity.

(7) The chemicals named in the aforesaid formula consisting of 6 ounces of tungstate of soda, 5 ounces of ammonium muriate, 6 ounces of ammonium phosphate, 16 ounces of sal soda, 5 ounces of graphite, one half ounce of alum and 6 ounces of ammonium sulfate all combined in a finely powdered form and added to one gallon of lubricating oil and boiled for thirty minutes, will not in any way injure, corrode or change the character. condition, substance or structure of any steel, iron, brass or other metal parts upon which they are used; and on the contrary will preserve from the action of heat, oxidation of carbon, acidities, prevention of fires and add longer life to the lubricated parts.

(8) That 6 ounces of tungstate of soda, 5 ounces of ammonium muriate, 6 ounces of ammonium phosphate, 16 ounces of sal soda, 5 ounces of graphite, ounce of alum, and 6 ounces of ammonium sulfate all of which I mix together in the finest powder form and add to one gallon of lubricating oil and boil for thirty minutes is an improvement over my previous patent of February 10th, 1891, as a new and useful combination for a fireproof lubricating oil, for the lubrication of machinery or in the use of the techni all treatment of metals.

(9) -My object in the use, of 5 ounces of graphite combined with 6 ounces of tungstate of soda, 5 ounces of ammonium muriate, 6 ounces of ammonium phosphate, 16 ounces of sal soda, one half ounce of alum, and 6 ounces of ammonium sulfate, all of which I mix together in a finely powdered form and add to one gallon of lubricating oil and boil for thirty minutes. (a) that the use of the same (graphite) is demanded as a lubricant, (b) that the success of its use depends upon its suspension in a cool lubricant: since in the absence of the same it produces friction and heat. (0) -by the combination of one half ounce. of alum, graphite shows greater aliinity for the oil and other chemicals as used by me in my fornulla consisting of 6 ounces of tungstate of soda, 5 ounces of ammonium muriate, 6 ounces of ammonium phosphate, 16 ounces of sal soda. 5 ounces of graphite, -3 ounce of alum, and 6 ounces of ammonium sulfate, all of which I mix together in the finest powdered form and add to one gallon of lubricating oil and boil for thirty minutes. ((1) I further add 6 ounces of tungstate of soda, 5 ounces of ammonium muriate and 6 ounces of ammonium phosphate in the aforesaid proportions as mentioned in my formula and process for a new and improved lubricating oil for the purpose of rendering carbon or compounds of carbon incapable of taking fire by lessening molecular action of graphite in the presence of carbon compounds and oxygensucli as is required of perfect lubricating oils.

Having fully described my process and product, I claim,

An oil adapted to form a lubricant ofiering great resistance to heat, comprising an unctuous substance as a base, graphite and a mixture of chemical salts, namely, 6 ounces of tungstate of soda. 5 ounces of ammonium muriate, 6 ounces of ammonium phosphate, 16 ounces of sal soda, 5 ounces of graphite, 9 ounce of alum and 6 ounces of ammonium sulfate, mixed to one gallon of lubricating oil and boiled for one half hour.

ROBERT R. GRAF. 

